ASCOM Ascotel 2025 System Manual page 661

ascom Ascotel 2025/2045/2065
Example: Exchange Access via Exchange Access Prefix
Fig. 3.7: Example of the exchange access prefix via up-circuit PBX
The following configuration steps are necessary:
1. The exchange access prefix of the up-circuit PBX must be enabled in the
exchange digit barring.
2. The corresponding analogue trunk lines are configured to "down-circuit from
the PBX". Consequence:
– Digit barring is switched off in general. The digit barring of the up-circuit
PBX has to be used.
– Incoming calls are forwarded transparently to the subscriber.
3. The corresponding analogue trunk lines are to be configured to the correct
"dialling type".
– If the up-circuit PBX provides DTMF and pulse dialling for internal sub-
scriber
® configure trunk lines to DTMF.
– If the up-circuit PBX only provides pulse dialling for internal subscribers
® configure trunk lines to pulse dialling; the system earth must also be
installed for the earth key criterion.
3.30 Planning a PBX
0 – 0 – 032 6000 00 00
Wait for dialling tone or continue dialling after 6 s
for example (adjustable dialling pause)
Exchange access prefix on up-circuit PBX
When dialling via line key, all the characters
before the hyphen are suppressed during dialling
Exchange access prefix
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HBT_20321104_03/B0_en